• 433 MHz RF relay receiver module with high reception sensitivity over 97dBm. • Includes 2 remote control transmitters with a range of up to 50 meters in open areas. • Features 4 configurable operating modes: momentary, toggle, latched, and delay. • High-quality 10 A relay with potential-free contacts and passive output. • Design with 3 terminals: normally open pin, common pin, and normally closed pin. • The receiver can store approximately 20 transmitters with EV1527 learning code. • 12V operating voltage, ideal for applications in homes, offices, and factories. • Compatible with garage door opening systems, electric locks, lighting, water pumps, and ventilation systems.